IL2CPP issues with Easy Save 2

Hi There,

When I try to build for iOS with Unity 5.6.0b1 and 5.6.0b3, (on Windows 7)the build fails due to IL2CPP issues. (See below). I'm using the latest ES2 (2.7.1). I appreciate this could be an Easy Save 2 issue, but it maybe a IL2CPP issue too, so I figure its best to mention this here.

Steps:

New project, import ES2, add ES2 example scene: "Save and Load Prefabs" to the build, then attempted to build for iOS.

ES2 works ok if

I use Unity 5.5
OR
Select monox2 as the backend.

I'm not technical enough to understand the changes to IL2CPP for 5.6, but it does get mentioned a lot in the change notes.

The error I get:

Code (CSharp):

1. Failed running C:\Program Files\Unity\Editor\Data\Tools/UnusedByteCodeStripper2/UnusedBytecodeStripper2.exe --api NET_2_0_Subset -out "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed\tempStrip" -l none -c link -b True -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Core.xml" -f "C:\Program Files\Unity\Editor\Data\il2cpp\LinkerDescriptors" -x "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed\..\platform_native_link.xml" -x "C:\Users\Mark\Desktop\Angpad2 - Copy/Temp/StagingArea/Data/methods_pointedto_by_uievents.xml" -x "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\preserved_derived_types.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\AI.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Animation.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Audio.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Cloth.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Core.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\CrashReporting.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\IMGUI.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\JSONSerialize.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\ParticlesLegacy.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\ParticleSystem.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Physics.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Physics2D.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Terrain.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\TerrainPhysics.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\TextRendering.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\UI.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\UNET.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\UnityAds.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\UnityAnalytics.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\UnityConnect.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\UnityWebRequest.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Vehicles.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\VR.xml" -x "C:/Program Files/Unity/Editor/Data/PlaybackEngines/iOSSupport\Whitelists\Web.xml" -x "C:\Users\Mark\Desktop\Angpad2 - Copy\Assets\link.xml" -d "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed" -a  "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed\Assembly-CSharp-firstpass.dll" -a  "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed\Assembly-CSharp.dll" -a  "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed\Assembly-UnityScript.dll" -a  "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed\UnityEngine.UI.dll" -a  "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed\DOTween.dll" -a  "C:\Users\Mark\Desktop\Angpad2 - Copy\Temp\StagingArea\Data\Managed\ES2.dll"
2.  
3. stdout:
4. SweepReport:
5. Mono.Cecil.MethodDefinition => System.Void .ctor(System.String,MoodkieSecurity.AESBits,System.Byte[])System.String Encrypt(System.String)System.String Decrypt(System.String)System.String get_Password()System.Void set_Password(System.String)
6. Mono.Cecil.FieldDefinition => System.String internalPostfixSystem.Int32 FirstPrimeSystem.Int32 SecondPrimeSystem.String TRIAL_DURATIONAdvertisingIdentifierCallback OnAdvertisingIdentifierCallback
7. System.RuntimeType => Mono.Cecil.TypeDefinitionMono.Cecil.TypeDefinitionMono.Cecil.TypeDefinitionMono.Cecil.TypeDefinitionMono.Cecil.TypeDefinition
8. Fatal error in Mono CIL Linker
9. Mono.Cecil.ResolutionException: Failed to resolve UnityEngine.WWWAudioExtensions
10.    at UnusedBytecodeStripper2.AddUnresolvedStubsStep.Process()
11.    at Mono.Linker.Steps.BaseStep.Process(LinkContext context)
12.    at Mono.Linker.Pipeline.Process(LinkContext context)
13.    at Mono.Linker.Driver.RunDriver(Driver driver, IEqualityComparer`1 typeComparer, IEqualityComparer`1 methodComparer)
14. stderr:
15.  
16. UnityEngine.Debug:LogError(Object)
17. UnityEditorInternal.Runner:RunManagedProgram(String, String, String, CompilerOutputParserBase, Action`1) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/BuildUtils.cs:96)
18. UnityEditorInternal.AssemblyStripper:RunAssemblyLinker(IEnumerable`1, String&, String&, String, String) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/AssemblyStripper.cs:104)
19. UnityEditorInternal.AssemblyStripper:StripAssembliesTo(String[], String[], String, String, String&, String&, String, IIl2CppPlatformProvider, IEnumerable`1, Boolean) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/AssemblyStripper.cs:97)
20. UnityEditorInternal.AssemblyStripper:RunAssemblyStripper(String, IEnumerable, String, String[], String[], String, IIl2CppPlatformProvider, RuntimeClassRegistry, Boolean) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/AssemblyStripper.cs:196)
21. UnityEditorInternal.AssemblyStripper:StripAssemblies(String, IIl2CppPlatformProvider, RuntimeClassRegistry, Boolean) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/AssemblyStripper.cs:128)
22. UnityEditorInternal.IL2CPPBuilder:Run() (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:118)
23. UnityEditorInternal.IL2CPPUtils:RunIl2Cpp(String, String, IIl2CppPlatformProvider, Action`1, RuntimeClassRegistry, Boolean) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/Il2Cpp/IL2CPPUtils.cs:32)
24. UnityEditor.HostView:OnGUI()
25.  

 

If, as you mentioned, the same project works with IL2Cpp in Unity 5.5, I would assume it's a software regression introduced in Unity 5.6 beta and submit a bug-report.

Don't miss to post the bug-report Case number from the bug-report confirmation email here as well, this allows Unity to find your bug-report if they look at this forum post.

 

Thankyou. I have filed a bug report. Case: 866611.